We study the Capacitated Supplier Selection problem with Total Quantity Discount policy and Activation Costs, a procurement problem where a company needs a certain quantity of different products from a set of potential suppliers, and introduce its variant under uncertainty. In its deterministic form, the problem aims at selecting a subset of the suppliers and the relative purchasing plan satisf...

The present study first investigates the asymmetry of speedup - delay (gain and loss) and Sign Effect in Tehran Stock Exchange, then examine the effect of gender on the discount rate and explain it with the loss aversion. The sample is 403 investors in Tehran Stock Exchange, and the nonparametric Tests are used to test the research hypotheses. The research results show that there is an asymmetr...

As supply chains continue to globalize, the need for robust supplier qualification and supplier selection and evaluation programs becomes increasingly critical. In this context, this paper aims to present a methodological approach for the optimization of the procurement processes in today’s globalized supply chains. More specifically, we first provide a categorization of the relevant past resea...

Recently, the economic crisis has resulted in instability in stock exchange market and this has caused high volatilities in stock value of exchanged firms. Under these conditions, considering uncertainty for a favorite investment is more serious than before. Multi-objective Portfolio selection (Return, Liquidity, Risk and Initial cost of Investment objectives) using MINMAX fuzzy goal programmin...

Supplier selection and allocating orders to supplier is a complex multi objective problem which includes both quantitative and qualitative factors. In order to achieve an efficient solution in the quantitative factors, a Multi Objective Fuzzy Linear Programming [MOFLP] model with fuzziness in objective, resources, technological coefficient and resources for the proposed weighted additive model ...

The paper investigates the impact of EMU on foreign direct investment flows. Using the option value approach to investment decisions, it is possible to show how exchange rate uncertainty hinders cross-border investment flows. By permanently fixing bilateral exchange rates, a currency union can then be expected to spur international investment. Results from a gravity model on a sample of OECD co...

We investigate a tool which small manufacturers engaging in international supply contracts can use to dampen the variations in their income caused by exchange rate uctuations. The method we study involves contractual speci cations for a minimum purchase quantity with the buyer. The particular case we consider is that of a smaller manufacturer providing a product to a large overseas corporation,...

making capital and investment is the main driving forces of economic development. based on the investment sensitivity to the changes of some of macro-economic variables and risk and uncertainty, the present study evaluated the effective factors on investment in private sector in iran during 1980-2007. at first, the uncertainty variables of real informal exchange rate, nominal interest rate and ...

Different from the conventional methods of probability theory, this paper discusses the currency option pricing problem within the framework of uncertainty theory. Considering the uncertain factors in the financial market, we propose a new uncertain currency model with floating interest rates based on the assumption that the domestic interest rate, the foreign interest rate and the exchange rat...

Liu process is a new tool to deal with the noise process based on uncertainty theory. In this paper, we view the foreign exchange rate as an uncertain process, described by an uncertain differential equation driven by Liu process, and build an uncertain currency model. Then the uncertain currency option processes are discussed. Moreover, European and American currency option pricing formulas ar...